Malus domestica Borkh. IQF Flavonoidler Fenolik asitler HPLC–PDA
Granny
Smith apples can be consumed as fresh or they are widely used in the frozen
food industry. Determining the changes in polyphenol content during the
production steps of foods is important for the nutritional value of the final
product. The aim of this study was to determine the changes in the polyphenol
content of Granny Smith apples taken from various steps of the individual quick
freezing (IQF) treatment. Total phenolic content, total flavonoid content, and
total antioxidant capacity were determined using spectrophotometric methods
whereas the quantification of polyphenols were carried out by a chromatographic
method using high performance liquid chromatography–photodiode array detector
(HPLC–PDA). As a result of HPLC–PDA analysis, a total of 10 polyphenolic
compounds belonging to 4 groups including flavanols, dihydrochalcones, phenolic
acids and flavonols were identified in the raw material. Waste product was
richer in dihydrochalcones and flavonols compared to raw material (140-378%) (p<0.05).
Acidification resulted in significant increases in total phenolic content,
total flavonoid content, total antioxidant capacity, flavanols and phenolic
acids (%9–121) (p<0.05). Although there were decreases after cutting and
freezing steps compared to acidification, there was no statistically significant
difference between the raw material and end product in terms of the total
phenolic content, total flavonoid content, flavanols, dihydrochalcones and
phenolic acids (p>0.05). These results indicated that IQF Granny Smith
apples are good sources of polyphenols, just as fresh apples.
Malus domestica Borkh. IQF Flavonoids Phenolic acids HPLC–PDA
Birincil Dil | Türkçe |
---|---|
Bölüm | Araştırma Makaleleri |
Yazarlar | |
Yayımlanma Tarihi | 26 Mart 2019 |
Gönderilme Tarihi | 27 Ocak 2019 |
Yayımlandığı Sayı | Yıl 2019 Cilt: 17 Sayı: 1 |
Bu eser Creative Commons Atıf-GayriTicari 4.0 (CC BY-NC 4.0) Uluslararası Lisansı ile lisanslanmıştır.
Akademik Gıda (Academic Food Journal) is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).